Wood-cleaver.



' 3 A. BIENK.

l Woon GLEAVER'. APPLICATION FILED JULY 25, 1906.

vf'ffff EN f' PATENTED MAR.' 10, 1908.

ADOLPH BIEN K, OF KNIGSBERG, GERMANY.

WOOD-CLEAVER.

Specification of Letters Patent.l

'Patented March 1o, 1908.

Application led July 26, 1906. Serial No. 327,784.

To all whom it may concern:

Be it known that I, ADOLPH BIENK, a citizen of German Em ire, residingat Knigsberg, in Preussen, (germany, have invented new and usefulImprovements in Wood- Cleavers, of which the following is aspecification.

My invention relates to a wood splitting machine the object of which isto facilitate the work of preparing split logs for daily use.

My device is illustrated on the drawing herewith in which Figure 1 is aside view of the machine, Fig. 2 a front view of the same with theexception of the top portion which is a vertical section on the lineA--B of Fig. 1. Fig. 3 is a horizontal section on the line C-D of Fig.1; Fig.

4 is a top view of the vertical guide block herein referred to and Fig.5 an elevation of the same.

The machine consists of a block frame a of cast iron or steel which hason top a pair of cheeks b, c carrying a crank shaft d. The latter is onone end provided with a projection e for the securement thereon of alever f or other operating means. In the said crank shaft d is furthersecured a connecting rod g the lower end of which is rotarily mounted ina foot block 7L. The latter is provided with a bore which has anaperture c. Through the said bore is passed the stud Z of an axiallyrotatable punch m while the said. aperture 7c receives a nut n to securethe said stud l. The unch m has a pair of trunnions r and s an operatesin a vertical covered guide block o provided with grooves p, g guidingthe said trunnions. The said grooves 19, g are by two thirds of theirlengths vertically straight while the remainder is peripherally curved.The bottom end of the punch terminates in a hatchet t integral therewithor rigidly secured thereto.

At the foot of the machine, beneath the A i hatchet, there may beprovided aublock u with lateral guide bars 'v or any other supportadapted to receive and hold a log of wood intended for cleaving. Tofacilitate the axial turning of the punch m with the hatchet there maybe provided on the to -end, between the same and the foot h of) theconnectingrod aforesaid, a ball-bearing w.

The operation of the machine is very plain: the log 1s laid upon theblock u. When the lever f is turned down, the crank d forces the rod gdownward, which in turn acts upon the punch m with the hatchet t. Thelatter goes into the wood and then through vthe action of the curves ofthe guide grooves, makes an axial movement, thereby splitting the wood.The machine can be easily operated .by one person.

What I claim as my invention and desire rotect by Letters Patent is:

Wood cleaver comprising the combination of a block-frame, a crank-shafton top sup orte'd therein, a connecting rod secured in t e saidcrank-shaft, a foot rotarily at- `aohed to the bottom-end of the saidrod, a vertical guide-block secured in the said frame-block a punchguided in the said guide block and vertically and axially movabletherein, radial trunnions on the said punch, the said guide block havinggrooves receiving the said trunnions and being vertical and straight forthe greater portion of their lengths and then turning into peripheralcurves, a hatchet in the bottom-end of the said punch and a supportadapted to receive and hold a log of wood at the foot of the machine andwithin reach of the said hatchet, substantially as described.

In testimony whereof I have signed my lname to this specification in thepresence of two subscribing witnesses.

ADOLPH BIENK.

Witnesses: Y

M. HANNKE, OSCAR PAssEKELE

